4. On standard IQ tests, the mean is 100 with standard deviation 15. The results are very close to fitting a normal curve. Suppose the IQ test is given to a very large group of people. Find the percentage of people whose IQ score is: a) Greater than 130 b) Less than 85 c) Between 85 and 115. d) To join Mensa, one must be in the 98th percentile among all people taking the IQ test. What is the cut score to be in Mensa?
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4. On standard IQ tests, the mean is 100 with standard deviation 15. The results are...
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. Mensa is an international society that has one - and only one - qualification for membership: a score in the top 2% of the population on an IQ test. (a) What IQ score should one have in order to be eligible for Mensa? (b) In a typical region of 145,000 people, how many are eligible for Mensa?
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 10. Use the empirical rule to determine the following (a) What percentage of people has an IQ score between 70 and 1307 (b) What percentage of people has an IQ score less than 90 or greater than 110? (c) What percentage of people has an IQ score greater than 120?
The mean IQ score of adults is 100 , with a standard deviation of 15 . Use the Empirical Rule to find the percentage of adults with scores between 85 and 115 . (Assume the data set has a bell-shaped distribution
Suppose IQ scores are normally distributed with mean 100 and standard deviation 10. Which of the following is false? Group of answer choices A normal probability plot of IQ scores of a random sample of 1,000 people should show a straight line. Roughly 68% of people have IQ scores between 90 and 110. An IQ score of 80 is more unusual than an IQ score of 120. An IQ score greater than 130 is highly unlikely, but not impossible.
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 16. Use the empirical rule to determine the following. (a) What percentage of people has an IQ score between 84 and 116? (b) What percentage of people has an IQ score less than 68 or greater than 132? (c) What percentage of people has an IQ score greater than 148?
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 19. Use the empirical rule to determine the following. (a) What percentage of people has an IQ score between 62 and 138? (b) What percentage of people has an IQ score less than 62 or greater than 138? (c) What percentage of people has an IQ score greater than 119?
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 17 . Use the empirical rule to determine the following. (a) What percentage of people has an IQ score between 66 and 134 ? (b) What percentage of people has an IQ score less than 49 or greater than 151 ? (c) What percentage of people has an IQ score greater than 151 ?
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 17 Use the empirical rule to determine the following. (a) What percentage of people has an IQ score between 83 and 117? (b) What percentage of people has an IQ score less than 66 or greater than 134? (c) What percentage of people has an IQ score greater than 134?
scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 11. use the emperical rule to determine the following. b) what percentage of people has an IQ score less than 67 and greater than 133?c) what percentage of people has an IQ score greater than 122?
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 14. Use the empirical rule to determine the following. ( a) What percentage of people has an IQ score between 72 and 128? (b) What percentage of people has an IQ score less than 58 or greater than 142? (c) What percentage of people has an IQ score greater than 128? - Type as an integer or decimal